2014A&A...565A..50R


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.17CEST15:52:37

2014A&A...565A..50R - Astronomy and Astrophysics, volume 565A, 50-50 (2014/5-1)

A Spitzer-IRS view of early-type galaxies with cuspy/core nuclei and fast/slow rotation.

RAMPAZZO R., VEGA O., BRESSAN A., CLEMENS M.S., MARINO A. and PANUZZO P.

Abstract (from CDS):

The recent literature suggests that an evolutionary dichotomy exists for early-type galaxies (Es and S0s, ETGs) whereby their central photometric structure (cuspy vs. core central luminosity profiles), and figure of rotation (fast vs. slow rotators), are determined by whether they were formed by ``wet'' or ``dry'' mergers. We consider whether the mid-infrared (MIR) properties of ETGs, with their sensitivity to accretion processes in particular in the last few Gyr (on average z≲0.2), can put further constraints on this picture. We investigate a sample of 49 ETGs for which nuclear MIR properties and detailed photometrical and kinematical classifications are available from the recent literature. In the stellar light cuspy/core ETGs show a dichotomy that is mainly driven by their luminosity. However, in the MIR, the brightest core ETGs show evidence that accretions have triggered both AGN and star formation activity in the recent past, challenging a dry merger scenario. In contrast, we do find in the Virgo and Fornax clusters that cuspy ETGs, fainter than MKs=-24, are predominantly passively evolving in the same epoch, while in low-density environments they tend to be more active. A significant and statistically similar fraction of both fast rotators (FRs) (38+18–11%) and slow rotators (SRs) (50+34–21%) shows polycyclic aromatic hydrocarbon features in their MIR spectra. Ionized and molecular gas are also frequently detected. Recent star formation episodes are then a common phenomenon in both kinematical classes, even in those dominated by AGN activity, suggesting a similar evolutionary path in the last few Gyrs. MIR spectra suggest that the photometric segregation between cuspy and core nuclei and the dynamical segregation between FRs and SRs must have originated before z∼0.2.

Abstract Copyright:

Journal keyword(s): galaxies: elliptical and lenticular, cD - infrared: galaxies - galaxies: fundamental parameters - galaxies: evolution

Simbad objects: 53

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Number of rows : 53

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 821 G 02 08 21.150 +10 59 41.53   12.210 11.310 10.739 9.744 ~ 545 0
2 NGC 1339 GiG 03 28 06.582 -32 17 10.16   12.63   11.18   ~ 152 0
3 NGC 1351 GiG 03 30 34.983 -34 51 14.22   12.30   10.85   ~ 161 0
4 NGC 1374 GiP 03 35 16.598 -35 13 34.50 12.46 11.97 11.08 10.59   ~ 263 1
5 NGC 1389 GiP 03 37 11.7424496792 -35 44 45.871664087 12.80 12.39 11.50 10.99   ~ 177 1
6 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1481 1
7 ACO S 373 ClG 03 38 30 -35 27.3           ~ 1612 0
8 NGC 1404 GiP 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 683 1
9 NGC 1427 GiG 03 42 19.4447168502 -35 23 33.193682690   11.89   10.44   ~ 256 0
10 IC 2006 EmG 03 54 28.427 -35 58 01.75   12.39   10.94 11.9 ~ 196 0
11 NGC 2685 Sy2 08 55 34.7056265191 +58 44 03.877798862   13.68 12.70     ~ 410 1
12 NGC 2974 Sy2 09 42 33.267 -03 41 56.82   12.19   10.77   ~ 416 0
13 NGC 3193 GiP 10 18 24.884 +21 53 38.32 12.29 11.83 10.88 12.19   ~ 269 1
14 NGC 3245 GiP 10 27 18.3853542210 +28 30 26.626222848   11.6       ~ 320 0
15 NGC 3377 GiP 10 47 42.400 +13 59 08.30 11.55 11.24 10.38     ~ 735 1
16 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1397 0
17 NGC 3608 LIN 11 16 58.967 +18 08 54.71   11.7       ~ 483 0
18 NGC 4036 LIN 12 01 26.891 +61 53 44.52   12.18 11.20     ~ 239 0
19 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1142 0
20 NGC 4339 GiP 12 23 34.9404906978 +06 04 54.466056554   13.1       ~ 225 0
21 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 806 0
22 NGC 4371 GiG 12 24 55.430 +11 42 15.44 12.35 11.79 10.81     ~ 294 1
23 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1672 2
24 NGC 4377 GiG 12 25 12.308 +14 45 43.98   12.5       ~ 205 0
25 M 85 GiP 12 25 24.053 +18 11 27.89   10.2       ~ 612 0
26 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1024 1
27 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6036 0
28 NGC 4435 GiG 12 27 40.503 +13 04 44.48 12.23 11.74 10.80     ~ 416 2
29 NGC 4442 GiG 12 28 03.893 +09 48 13.03   11.2       ~ 266 0
30 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1990 2
31 NGC 4473 GiG 12 29 48.878 +13 25 45.55 11.60 11.16 10.20     ~ 612 1
32 NGC 4474 GiG 12 29 53.544 +14 04 07.22   12.6       ~ 248 0
33 NGC 4477 Sy2 12 30 02.172 +13 38 11.19 11.98 11.38 10.42     ~ 370 2
34 NGC 4478 GiP 12 30 17.439 +12 19 42.88 12.82 12.36 11.45   10.17 ~ 474 1
35 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6406 3
36 NGC 4550 GiP 12 35 30.612 +12 13 15.44 12.97 12.56 11.68     ~ 512 1
37 M 89 LIN 12 35 39.8073444 +12 33 22.830809 11.29 10.73 9.75     ~ 941 2
38 NGC 4563 GiC 12 36 12.8729848721 +26 56 29.205433972   15.7       ~ 14 0
39 NGC 4564 GiG 12 36 26.994 +11 26 21.55 12.51 12.05 11.12     ~ 569 1
40 NGC 4570 GiG 12 36 53.401 +07 14 47.99   11.8       ~ 315 0
41 M 59 GiG 12 42 02.322 +11 38 48.95   11.0       ~ 667 0
42 NGC 4636 LIN 12 42 49.867 +02 41 16.01   12.62 11.84     ~ 1053 1
43 M 60 GiP 12 43 40.008 +11 33 09.40   10.3       ~ 1271 0
44 NGC 4660 GiP 12 44 31.9848549289 +11 11 25.730688043   12.1       ~ 401 0
45 NGC 4697 GiG 12 48 35.8992791099 -05 48 02.497675635   10.97   9.83   ~ 814 0
46 NGC 5273 Sy1 13 42 08.386 +35 39 15.26   14.01 13.12     ~ 418 0
47 NGC 5353 GiP 13 53 26.7 +40 16 59   11.8   10.57   ~ 254 1
48 NGC 5631 Sy2 14 26 33.2891048599 +56 34 57.428383519   13.51 12.55     ~ 163 0
49 NGC 5638 GiP 14 29 40.389 +03 14 00.39 12.57 12.14 11.20     ~ 229 2
50 NGC 5813 LIN 15 01 11.265 +01 42 07.09 12.00 11.45 10.46 10.06   ~ 592 1
51 NGC 5831 GiG 15 04 07.024 +01 13 11.70   13.1   11.19   ~ 281 0
52 NGC 5846 BiC 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 790 1
53 NGC 7332 GiP 22 37 24.522 +23 47 54.06   12.0       ~ 358 0

    Equat.    Gal    SGal    Ecl

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2021.05.17-15:52:37

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